Nonglare head lamp



Nov. 30, 1937. QLSSON 2,100,913

NONGLARE HEAD LAMP Filed Sept. 16, 1935 INVE NTOR ER 1c (31.33am

gwma ATTORNEY Patented Nov. 30, 1937 UNITED STATES PATENT OFFICE 'I'hisinvention. relates to. new and useful? improvements. in a non-glare,head lamp.

The invention hasfor an object the construction of a non-glare head lampwhichis charac- ..terized. by a hollow lamp. body with its. front open,a parabolic reflector within. said body, and

a transverse glare. cutoutreflector plate mounted on an annular. memberengagedon the front edge. of said lamp body; 7 101 Still further the.invention contemplates. the construction. of the. cutout reflectorplate. on. the inner side of said annular member slightly below. theycenter thereof dividing. off upper and lower. portions. and extendingupwardsat. an iii-.-

1'5 clination.. Also, the invention contemplates the provision of atranslucent. glass plate. or similar" element, mounted. across the.upper portion. of

said. annular member for cutting. out all glaring. rays- 7 Another oneof.the. objects of, theinvention is may be mounted across the front. oi;the hollow body and over theannular member and the translucent plate-Still further the: invention. proposes an arrangement whereby aglaredirector reflector is mounted upon the parabolic reflector and. isadapted to direct glaring rays through the. low.- er portion oi theannular frame, that. is, below the glare cutout reflector plate.

Furthermore, the invention contemplatesv an arrangement whereby thetransverse. glare cut.- out reflector plate may be variedin size for.controlling the: extent to-which the glaring and the non-glaring raysemanate from the device.

Another object. of the invention is the construction of. a device asdescribed which is simple and durable and which can be manufactured andsold at areasonable cost.

' 0 For further comprehension of the invention, and of. theobjects andadvantages thereof, refer ence will be had to the' following descriptionand accompanying drawing, andto-the appended H claims in whichv thevarious novel. features of the invention are more particularly setforth- In the accompanying drawing forming a material part of thisdisclosure:- r

Fig. 1 is a transverse vertical sectional view of a device constructedaccording to this: in-

vention, certain of the parts being illustrated separated from each.other to disclose interior construction.

Fig. 2 is a front elevational view of. the device shown in Fig. 1 withthe front lens removed.

construct the parts so. that. aconventional lens.

Fig. a is a view similar to- Fig. 1 but illustrat-r ing a modifiedconstruction.

Fig. +1 is a fragmentary sectional-viewt'akerr on the line dtof Fig. 3.

The non-glare-head lamp, according to thlsfini- 5 vention; comprises ahollowlampbody limwith'.a,

front open end [0 A parabolic reflector II; is mounted within the bodyand has its edge; H terminating in the vicinity of the edge Illa. A.lampbulb I2 is mounted on thereflector. Hi for 10 the illumination ofthe'lamp. An annular meme ber f3" engages across the front edge Of. there.-: flector-H and thelampbody. This annularmema ber supportsatransverse glare cutout reflector plate [4 arranged on-thein'ner'sidethereoftslight=' 15 1y below the horizontal center and:dividingfofi? an upper 'section 13* and a'lower section I31": Thetransversereflector plate I4 extends up wards at a slight angle, asillustrated in Fig: 1: A translucent plate [5' is-maintained across theupper' portion I'3 of the annular member and is for the purpose ofdimming glaring: rays; A' lens I6 is mounted across: the firont' oi:the. lamp; body and serves to hold the annular member inposition. p. Aglare director reflector ll is mountedqupon' the parabolic reflector Hand isfor therpurposje'; of directing glaring raysthrough thelowerportion l3 of the annular member so thatv the; lowerportion of the lensis illuminated for'illuminating the road; a r

The hollow lamp body I0: is provided. with a bottom boss Ill upon whicha threaded stud 1 7 is mounted by whichthe lamp may be mounted upon avehicle. The parabolic reflector Ill 35 is of slightly. smaller sizethan the interiorcome. pass of the lamp, producing a space [8 there-'between. This space is utilized to house the elec trio leads IQ 'fortheelectric lamp II. The ele'ci tric lamp is mounted-in a'socket 10.mounted upon the parabolic reflector I l The leads l'll: extend to asocket 2| mounted upon the'lam'p body I".

The front edge of'the body Ill is formed into a i a flangeportion 10 inwhich isset a'resilient transverse. glare cutout reflector plate I 4pref- 55V erably is polished for assisting in reflecting the glaringrays at the bottom as desired. The lower area of the parabolic reflectorimmediately below the cutout reflector plate I4 is of a dull finish.This area is indicated by the distance A. The purpose is to preventdirect glaring rays from being reflected upwards through the lens of thelamp.

The lens I6 is mounted within an annular shaped frame 24 which isadapted to extend over the annular member l3 and over the edge of thelamp body 10.

A hollow plate 25 is mounted within the frame 24 and is formed with abulged area 25 adapted to engage in a receiving groove lll formedparallel to the edge of the lamp body and slightly spaced in therefrom.A set screw 26 engages through the frame 24 and is adapted to abutagainst the holding element 25 to flex it tightly within the groove bywhich the lens is fixedly and firmly mounted on the lamp body.

The glare reflector I1 is of a curvature so as to concentrate theglaring light through the opening l3 of the annular member. It ishingedly mounted by a pintle pin 26 upon the parabolic reflector II. Amechanism is provided to hold the glare reflector I! in various adjustedpositions. This mechanism consists of a stationary bushing 21 mountedthrough the parabolic reflector H and threadedly connected with a stem28 having an enlarged head 29 extending through an opening 30 in thelamp body ID. This head 29 is formed with a transverse out 3| by whichthe stem may be easily turned. The inner end of the stem 28 connectswith a universal joint 32 mounted on the glare director reflector H. Thearrangement is such that the head 29 may be turned in one direction oranother direction to adjust the reflector I! upwards or downwards.

In Figs. 3 and 4 a modified form of the invention has been disclosedwhich is substantially identical to the previous form, the correspondingparts being recognizable by the same reference numerals, butdistinguishing in the fact that provision is made for adjusting thetransverse glare cutout plate l4 thereof. In this form the plate I4 iscomposed of a plurality of curved flat sections I4, I4 etc. These curvedsections are normally held in, place by screws 34 engaging through theends thereof and into stationary rails 35 mounted along the walls of thereflector l l.

Thus, sections of the cutout reflector plate may be removed, or othersections added to control the relation between the inner edge of thereflector cutout plate and the lamp l2.

The operation of the device is as follows: When the lamp is upon avehicle and in operation, all of the direct and reflected rays whichpass through the upper portion l3 of the annular member will be dampenedor toned down by the translucent plate IS. The lamp will be readilyvisible to oncoming vehicles but will not cause the drivers thereofinconvenience by straining their eyes. The lamp directs andreflectsglaring rays through the lower portion I3 of the annular member,and these rays are directed against the ground so as to providesufficient illumination of the vehicle. The glare director plate I! maybe adjusted to a position in which the greatest number of glaring rayswill be directed through the lower portion 13 of the annular member.

While I have illustrated and described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to theprecise constructions herein disclosed and 1? right is reserved to allchanges and modifications coming within the scope of the invention asdeflned in the appended claims.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent is:--

1. In a non-glare head lamp, a parabolic reflector, an annular memberengaged over the front of said reflector andhaving a top translucentarea and a bottom transparent area, a lamp mounted within said parabolicreflector and located above the axis and at an intermediate positionbetween the outer edge and the inner base end of saidreflector, atransverse member supported on said annular member and extendingrearward from the junction of said translucent and said transparentareas to a position in which its rear edge is adjacent said lamp to formseparate passages for the light of said lamp, and a pivotal glaredirector reflector mounted on the base portion of said parabolicreflector just behind said lamp and adapted to be adjusted to direct thereflected rays of said lamp over the transverse member and through oneof said passages or below the transverse member and through the other ofsaid passages.

2. In a non-glare head lamp, a parabolic reflector, an annular memberengaged over the front of said reflector and having a top translucentarea and a bottom transparent area, a lamp mounted within said parabolicreflector and located above the axis at an intermediate position betweenthe outer edge and the inner base end of said reflector, a transverseglare reflector having a highly polished under side and supportedonsaidannularmemberand extending upwards at an angle from the junctionof said transparent and said translucent areas to divide said parabolicreflector into upper and lower passages so a part of the direct rays ofsaid lamp will pass through the upper of said passages, a glare directorreflector mounted on the base portion of said parabolic reflector justbehind said lamp to direct other rays of said lamp through the lower ofsaid passages against the highly polished under side of said glarereflector whereby said rays will be reflected at an angle to the road infront of said lamp.

3. A non-glare head lamp, comprising a hollow lamp body with a frontopening, a parabolic reflector within said body, a lamp mounted withinsaid parabolic reflector and located above the axis thereof and at anintermediate position between the outer edge and the inner base end ofthe reflector, an annular member engaged over the front of saidreflector and having a top translucent area and a bottom transparentarea, a flat transverse plate extending between said lamp and thejunction of said transparent and said translucent areas so that its rearedge is adjacent said lamp forming separate passages for the directlight rays of said lamp, a pivotal glare director reflector mounted onthe base portion of said parabolic reflector just behind'said lamp andadjustable to direct the reflected rays of said lamp over saidtransverse plate and through one of said passages or below said plateand through the other of said passages, and means for controlling theoperative size of said transverse glare reflector plate to control theextent to which the laring rays of said light will emanate from thedevice.

4. A non-glare head lamp, comprising a hollow lamp body with a frontopening, a parabolic reflector within said body, a lamp mounted withinsaid parabolic reflector and located above the =76 axis thereof and atan intermediate position between the outer edge and the inner base endof the reflector, an annular member engaged over the front of saidreflector and having a top translucent area and a bottom transparentarea, a flat transverse plate extending between said lamp and thejunction of said transparent and said trans-- lucent areas so that itsrear edge is adjacent said lamp forming separate passages for the directlight rays of said lamp, a pivotal glare director reflector mounted onthe base portion of said parabolic reflector just behind said lamp andadjustable to direct the reflected rays of said lam p over saidtransverse plate and through one of said; passages or below said plateand through the other of said passages, and means for controlling jacentsections removably mounted on said rail elements.

ERIC OLSSON.

